The Boyz' Jacob will be performing seated at tonight's 'Zeneration II' concert due to health issues.

The Boyz are holding their 'Zeneration II' world tour concert in Kuala Lumpur on September 7, but Jacob won't be able to perform as usual. IST Entertainment revealed Jacob would be performing seated later today due to "headaches and neck pain."

The label further stated Jacob will undergo a more detailed medical exam after returning to Korea.

Read IST Entertainment's full statement below.

"Dear THE B,

IST ENTERTAINMENT would like to hereby inform you regarding the health status and schedule of THE BOYZ member Jacob.

Unfortunately, Jacob will be seated while performing during THE BOYZ WORLD TOUR : ZENERATION Ⅱ IN Kuala Lumpur due to headaches and neck pain.

Upon his return to Korea, he will undergo detailed examinations and treatment. We sincerely apologize for causing concerns with such news.

We will do our absolute best to ensure his speedy recovery.

Thank you for your understanding."

SEE ALSO: The Boyz’s Eric shines in his first DJ role on ‘Idol Radio’